Update FAQ_DEV.

doc/FAQ_DEV

@@ -1,7 +1,7 @@
 
           Developer's Frequently Asked Questions (FAQ) for PostgreSQL
                                        
-   Last updated: Sat Dec 29 23:31:26 EST 2001
+   Last updated: Thu Jan 3 03:13:44 EST 2002
    
    Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
    
@@ -632,11 +632,11 @@ List *i, *list;
   2.5) Why do we use palloc() and pfree() to allocate memory?
   
    palloc() and pfree() are used in place of malloc() and free() because
-   we automatically free all memory allocated when a transaction
-   completes. This makes it easier to make sure we free memory that gets
-   allocated in one place, but only freed much later. There are several
-   contexts that memory can be allocated in, and this controls when the
-   allocated memory is automatically freed by the backend.
+   we find it easier to automatically free all memory allocated when a
+   query completes. This assures us that all memory that was allocated
+   gets freed even if we have lost track of where we allocated it. There
+   are special non-query contexts that memory can be allocated in. These
+   affect when the allocated memory is freed by the backend.
    
   2.6) What is elog()?
   

doc/src/FAQ/FAQ_DEV.html

@@ -12,7 +12,7 @@
     <H1>Developer's Frequently Asked Questions (FAQ) for
     PostgreSQL</H1>
 
-    <P>Last updated: Sat Dec 29 23:31:26 EST 2001</P>
+    <P>Last updated: Thu Jan  3 03:13:44 EST 2002</P>
 
     <P>Current maintainer: Bruce Momjian (<A href=
     "mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</A>)<BR>
@@ -766,12 +766,12 @@
     <I>pfree</I>() to allocate memory?</H3>
 
     <P><I>palloc()</I> and <I>pfree()</I> are used in place of malloc()
-    and free() because we automatically free all memory allocated when
-    a transaction completes. This makes it easier to make sure we free
-    memory that gets allocated in one place, but only freed much later.
-    There are several contexts that memory can be allocated in, and
-    this controls when the allocated memory is automatically freed by
-    the backend.</P>
+    and free() because we find it easier to automatically free all
+    memory allocated when a query completes. This assures us that all
+    memory that was allocated gets freed even if we have lost track of
+    where we allocated it. There are special non-query contexts that
+    memory can be allocated in. These affect when the allocated memory
+    is freed by the backend.</P>
 
     <H3><A name="2.6">2.6</A>) What is elog()?</H3>